Castner's Auto Service, Inc.

Castner's Auto Service has kept Placentia drivers rolling since 1957, when the shop operated under the Lakeview name. The family-owned facility moved to its current address at 214 S. Bradford Ave. in 1968, where patriarch Ron Castner now runs the operation his father built. With 56 reviews earning a 4.8-star average, the shop draws customers from across Placentia and neighboring Fullerton and Yorba Linda. Monday through Friday, the counter opens at 7:30 a.m., and the team welcomes walk-in inquiries alongside scheduled appointments.

As an ASC-authorized shop, Castner's performs state-certified smog inspections and emissions repairs on vehicles of all makes and models. Their homepage walks visitors through what that certification means for accountability and parts sourcing. The vintage 1997-era website, preserved as a nostalgic nod, still carries the correct phone number and address, no confusing redirects for longtime customers or first-time callers wondering if they have the right number.

Reviewers consistently call out Ron by name. Diane Langan described how he told her family they did not actually need a costly repair they had feared, saving them hundreds of dollars. When Manos Electric needed urgent help with an overheating work truck, Ron and his crew had the vehicle diagnosed by 7:30 the next morning, communicated updates throughout the process, and completed the fix ahead of schedule and under the initial estimate. Patricia Marques recalled bringing a company truck to the dealer first, where a $3,000 catalytic converter replacement was quoted, only to have Castner's correctly identify the real issue.